A technical loophole involving thermal expansion has triggered accusations, secret letters to the FIA, and a war of words ...

Christian Horner says Mercedes and Red Bull are pushing F1 2026 power unit limits, dismissing claims of “cheating like ...

A gasoline piston engine that can dynamically change its compression ratio —that is, the amount by which the piston squeezes the fuel-air mixture in the cylinder—has long been a holy grail of engine ...

Mercedes’ rivals are scrambling to forge a united front over Formula 1’s simmering compression ratio controversy.

Any diesel-engine manufacturer that confidently claims it produces an oil-burner with the “world’s lowest compression ratio,” will no doubt draw the immediate attention of inquisitive enthusiasts, ...